X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=docs%2Fclasses%2FFixedThreadPool.html;h=80c5a168bc103a02489658bf29d2afd42d42f431;hb=2cfe1d177c50d60f3bc168bd51df2fe957847784;hp=5090dfb9163f584431ed3860a1a4e1edc5adb994;hpb=71d327d5587f0ce2b746ba33ec0cfbb3a0dc5d1b;p=poolifier.git diff --git a/docs/classes/FixedThreadPool.html b/docs/classes/FixedThreadPool.html index 5090dfb9..80c5a168 100644 --- a/docs/classes/FixedThreadPool.html +++ b/docs/classes/FixedThreadPool.html @@ -1,1150 +1,141 @@ -
Protected
shallProtected
Readonly
workerThis method is the message listener registered on each worker.
+
A thread pool with a fixed number of threads.
-Author
Alessandro Pio Ardizio
- +- Preparing search index...
- The search index is not available
poolifier - v4.0.3Class FixedThreadPool<Data, Response>
A thread pool with a fixed number of threads.
+Author
Alessandro Pio Ardizio
Since
0.0.1
-Type Parameters
---
-
-
--
-
-
Data = unknown
-Type of data sent to the worker. This can only be structured-cloneable data.
-Response = unknown
-Type of execution response. This can only be structured-cloneable data.
-Hierarchy
--- AbstractPool<Worker, Data, Response>
-
-- FixedThreadPool
-
-- DynamicThreadPool
-
-Index
Constructors
-Properties
-Accessors
-Methods
-Constructors
-constructor
--- new
Fixed Thread Pool<Data, Response>(numberOfThreads, filePath, opts?): FixedThreadPool<Data, Response>
--
-
-
-
-
-
-
Constructs a new poolifier fixed thread pool.
-Type Parameters
---
-
--
-
Data = unknown
Response = unknown
Parameters
---
-
-
--
-
-
--
-
-
numberOfThreads: number
-Number of threads for this pool.
-filePath: string
-Path to an implementation of a
-ThreadWorker
file, which can be relative or absolute.opts: ThreadPoolOptions = {}
-Options for this fixed thread pool.
-Returns FixedThreadPool<Data, Response>
-Properties
-
-Optional
emitterEvent emitter integrated with async resource on which events can be listened to. +
Type Parameters
Type of data sent to the worker. This can only be structured-cloneable data.
+Type of execution response. This can only be structured-cloneable data.
+Hierarchy (view full)
Index
Constructors
Properties
Accessors
Methods
Constructors
constructor
Constructs a new poolifier fixed thread pool.
+Type Parameters
Parameters
Number of threads for this pool.
+Path to an implementation of a
+ThreadWorker
file, which can be relative or absolute.Options for this fixed thread pool.
+Optional
maximumNumberOfThreads: numberReturns FixedThreadPool<Data, Response>
Properties
Optional
emitterPool event emitter integrated with async resource. The async tracking tooling identifier is
poolifier:<PoolType>-<WorkerType>-pool
.Events that can currently be listened to:
-
+
+
-'ready'
: Emitted when the number of workers created in the pool has reached the minimum size expected and are ready.'ready'
: Emitted when the number of workers created in the pool has reached the minimum size expected and are ready. If the pool is dynamic with a minimum number of workers is set to zero, this event is emitted when at least one dynamic worker is ready.'busy'
: Emitted when the number of workers created in the pool has reached the maximum size expected and are executing concurrently their tasks quota.'full'
: Emitted when the pool is dynamic and the number of workers created has reached the maximum size expected.'empty'
: Emitted when the pool is dynamic with a minimum number of workers set to zero and the number of workers has reached the minimum size expected.'destroy'
: Emitted when the pool is destroyed.'error'
: Emitted when an uncaught error occurs.'taskError'
: Emitted when an error occurs while executing a task.'backPressure'
: Emitted when all worker nodes have back pressure (i.e. their tasks queue is full: queue size >= maximum queue size). Path
-Protected
Readonly
filePath to the worker file.
-
-Protected
Optional
Readonly
maxDynamic pool maximum size property placeholder.
- Of Workers
-Protected
Readonly
numberNumber of workers that this pool should manage.
-
-Protected
Readonly
optsOptions for this fixed thread pool.
- Response Map
-Protected
promiseThe task execution response promise map:
+Protected
Readonly
filePath to the worker file.
+Protected
Optional
Readonly
maximumMaximum number of workers that this pool manages.
+Protected
Readonly
minimumMinimum number of workers that this pool manages.
+Protected
Readonly
optsOptions for the pool.
+Protected
promiseThe task execution response promise map:
key
: The message id of each submitted task.value
: An object that contains the worker, the execution response promise resolve and reject callbacks.value
: An object that contains task's worker node key, execution response promise resolve and reject callbacks, async resource.When we receive a message from the worker, we get a map entry with the promise resolve/reject bound to the message id.
- Choice Strategy Context
-Protected
workerWorker choice strategy context referencing a worker choice algorithm implementation.
- Nodes
-Readonly
Internal
workerPool worker nodes.
-Accessors
-
-Protected
busy-- get busy(): boolean
--
-
Whether the pool is busy or not.
+Protected
Optional
workerWorker choice strategies context referencing worker choice algorithms implementation.
+Readonly
Internal
workerPool worker nodes.
+Accessors
Protected
busyWhether the pool is busy or not.
The pool busyness boolean status.
-Returns boolean
-
-Protected
full-- get full(): boolean
--
-
Whether the pool is full or not.
+Returns boolean
Protected
emptyThe pool emptiness boolean status.
+Returns boolean
Protected
fullWhether the pool is full or not.
The pool filling boolean status.
-Returns boolean
-info
--- get info(): PoolInfo
--
-
-
Pool information.
-Returns PoolInfo
- Size
-Protected
max-- get maxSize(): number
--
-
-
The pool maximum size.
-Returns number
- Size
-Protected
min-- get minSize(): number
--
-
-
The pool minimum size.
-Returns number
-
-Private
ready-- get ready(): boolean
--
-
-
The pool readiness boolean status.
-Returns boolean
-
-Protected
type-- get type(): "fixed" | "dynamic"
--
-
The pool type.
+Returns boolean
info
Pool information.
+Returns PoolInfo
Private
readyThe pool readiness boolean status.
+Returns boolean
Protected
typeThe pool type.
If it is
-'dynamic'
, it provides themax
property.Returns "fixed" | "dynamic"
-
-Private
utilization-- get utilization(): number
--
-
-
The approximate pool utilization.
-Returns number
The pool utilization.
- -
-Protected
worker-- get worker(): "thread" | "cluster"
--
-
-
The worker type.
-Returns "thread" | "cluster"
-Methods
-add Task Function
--- add
Task Function(name, fn): Promise<boolean>
--
-
-
-
-
-
Adds a task function to this pool. -If a task function with the same name already exists, it will be overwritten.
-Parameters
---
-
-
--
-
-
name: string
-The name of the task function.
-fn: TaskFunction<Data, Response>
-The task function.
-Returns Promise<boolean>
- -true
if the task function was added,false
otherwise.Throws
https://nodejs.org/api/errors.html#class-typeerror If the
- -name
parameter is not a string or an empty string.Throws
https://nodejs.org/api/errors.html#class-typeerror If the
-fn
parameter is not a function. Task Execution Hook
-Protected
after-- after
Task Execution Hook(workerNodeKey, message): void
--
-
Hook executed after the worker task execution. +
Returns "fixed" | "dynamic"
Private
utilizationThe approximate pool utilization.
+Returns number
The pool utilization.
+Protected
workerThe worker type.
+Returns "thread" | "cluster"
Methods
add Task Function
Parameters
Returns Promise<boolean>
Inherit Doc
Protected
afterHook executed after the worker task execution. Can be overridden.
-Parameters
---
-
-
--
-
-
workerNodeKey: number
-The worker node key.
-message: MessageValue<Response, unknown>
-The received message.
-Returns void
- Worker Node Setup
-Protected
after-- after
Worker Node Setup(workerNodeKey): void
--
-
- workerNodeKey: number
- message: MessageValue<Response, unknown>
Method hooked up after a worker node has been newly created. +
Parameters
The worker node key.
+The received message.
+Returns void
Protected
afterMethod hooked up after a worker node has been newly created. Can be overridden.
-Parameters
---
-
-
workerNodeKey: number
-The newly created worker node key.
-Returns void
- Task Execution Hook
-Protected
before-- before
Task Execution Hook(workerNodeKey, task): void
--
-
- workerNodeKey: number
Hook executed before the worker task execution. +
Parameters
The newly created worker node key.
+Returns void
Protected
beforeHook executed before the worker task execution. Can be overridden.
-Parameters
---
-
-
--
-
-
workerNodeKey: number
-The worker node key.
-task: Task<Data>
-The task to execute.
-Returns void
- And Setup Dynamic Worker Node
-Protected
create-- create
And Setup Dynamic Worker Node(): number
--
-
-
Creates a new, completely set up dynamic worker node.
-Returns number
New, completely set up dynamic worker node key.
- - And Setup Worker Node
-Protected
create-- create
And Setup Worker Node(): number
--
-
-
Creates a new, completely set up worker node.
-Returns number
New, completely set up worker node key.
- - Worker
-Protected
create-- create
Worker(): Worker
--
-
-
Creates a new worker.
-Returns Worker
Newly created worker.
- - Worker Message Listener
-Protected
deregister-- deregister
Worker Message Listener<Message>(workerNodeKey, listener): void
--
-
-
-
-
-
-
Deregisters a listener callback on the worker given its worker node key.
-Type Parameters
---
-
Message
Parameters
---
-
-
--
-
-
-
workerNodeKey: number
-The worker node key.
-listener: ((message) => void)
-The message listener callback.
---
-
-- (message): void
--
-
-
-
Parameters
---
-
message: MessageValue<Message, unknown>
Returns void
Returns void
-destroy
--- destroy(): Promise<void>
--
-
-
Terminates all workers in this pool.
-Returns Promise<void>
- Worker Node
-Protected
destroy-- destroy
Worker Node(workerNodeKey): Promise<void>
--
-
-
-
-
Terminates the worker node given its worker node key.
-Parameters
---
-
-
workerNodeKey: number
-The worker node key.
-Returns Promise<void>
-enable Tasks Queue
--- enable
Tasks Queue(enable, tasksQueueOptions?): void
--
-
-
-
-
Enables/disables the worker node tasks queue in this pool.
-Parameters
---
-
-
--
-
-
enable: boolean
-Whether to enable or disable the worker node tasks queue.
-
-Optional
tasksQueueOptions: TasksQueueOptionsThe worker node tasks queue options.
-Returns void
-execute
--- execute(data?, name?, transferList?): Promise<Response>
--
-
-
-
-
Executes the specified function in the worker constructor with the task data input parameter.
-Parameters
---
-
-
--
-
-
--
-
-
-Optional
data: DataThe optional task input data for the specified task function. This can only be structured-cloneable data.
-
-Optional
name: stringThe optional name of the task function to execute. If not specified, the default task function will be executed.
-
-Optional
transferList: TransferListItem[]An optional array of transferable objects to transfer ownership of. Ownership of the transferred objects is given to the pool's worker_threads worker and they should not be used in the main thread afterwards.
-Returns Promise<Response>
Promise that will be fulfilled when the task is completed.
- - Tasks Queue
-Protected
flush-- flush
Tasks Queue(workerNodeKey): void
--
-
-
-
Parameters
---
-
workerNodeKey: number
Returns void
Worker Info
-Protected
get-- get
Worker Info(workerNodeKey): WorkerInfo
--
-
-
-
-
Gets the worker information given its worker node key.
-Parameters
---
-
-
workerNodeKey: number
-The worker node key.
-Returns WorkerInfo
The worker information.
- -has Task Function
--- has
Task Function(name): boolean
--
-
-
-
-
Whether the specified task function exists in this pool.
-Parameters
---
-
-
name: string
-The name of the task function.
-Returns boolean
- -true
if the task function exists,false
otherwise.has Worker Node Back Pressure
--- has
Worker Node Back Pressure(workerNodeKey): boolean
-
-
-
-
Internal
-Whether the worker node has back pressure (i.e. its tasks queue is full).
-Parameters
---
-
-
workerNodeKey: number
-The worker node key.
-Returns boolean
- -true
if the worker node has back pressure,false
otherwise. Busy
-Protected
internal-- internal
Busy(): boolean
--
-
-
Whether worker nodes are executing concurrently their tasks quota or not.
-Returns boolean
Worker nodes busyness boolean status.
- - Main
-Protected
is-- is
Main(): boolean
--
-
-
Should return whether the worker is the main worker or not.
-Returns boolean
-list Task Function Names
--- list
Task Function Names(): string[]
--
-
-
Lists the names of task function available in this pool.
-Returns string[]
The names of task function available in this pool.
- - Once Worker Message Listener
-Protected
register-- register
Once Worker Message Listener<Message>(workerNodeKey, listener): void
--
-
-
-
-
-
-
Registers once a listener callback on the worker given its worker node key.
-Type Parameters
---
-
Message
Parameters
---
-
-
--
-
-
-
workerNodeKey: number
-The worker node key.
-listener: ((message) => void)
-The message listener callback.
---
-
-- (message): void
--
-
-
-
Parameters
---
-
message: MessageValue<Message, unknown>
Returns void
Returns void
- Worker Message Listener
-Protected
register-- register
Worker Message Listener<Message>(workerNodeKey, listener): void
--
-
-
-
-
-
-
Registers a listener callback on the worker given its worker node key.
-Type Parameters
---
-
Message
Parameters
---
-
-
--
-
-
-
workerNodeKey: number
-The worker node key.
-listener: ((message) => void)
-The message listener callback.
---
-
-- (message): void
--
-
-
-
Parameters
---
-
message: MessageValue<Message, unknown>
Returns void
Returns void
-remove Task Function
--- remove
Task Function(name): Promise<boolean>
--
-
-
-
-
Removes a task function from this pool.
-Parameters
---
-
-
name: string
-The name of the task function.
-Returns Promise<boolean>
- -true
if the task function was removed,false
otherwise. Kill Message To Worker
-Protected
send-- send
Kill Message To Worker(workerNodeKey): Promise<void>
--
-
-
-
Parameters
---
-
workerNodeKey: number
Returns Promise<void>
Startup Message To Worker
-Protected
send-- send
Startup Message To Worker(workerNodeKey): void
--
-
-
-
-
Sends the startup message to worker given its worker node key.
-Parameters
---
-
-
workerNodeKey: number
-The worker node key.
-Returns void
- To Worker
-Protected
send-- send
To Worker(workerNodeKey, message, transferList?): void
--
-
-
-
-
Sends a message to worker given its worker node key.
-Parameters
---
-
-
--
-
-
--
-
-
workerNodeKey: number
-The worker node key.
-message: MessageValue<Data, unknown>
-The message.
-
-Optional
transferList: TransferListItem[]The optional array of transferable objects.
-Returns void
-set Default Task Function
--- set
Default Task Function(name): Promise<boolean>
--
-
-
-
-
Sets the default task function in this pool.
-Parameters
---
-
-
name: string
-The name of the task function.
-Returns Promise<boolean>
- -true
if the default task function was set,false
otherwise.set Tasks Queue Options
--- set
Tasks Queue Options(tasksQueueOptions): void
--
-
-
-
-
Sets the worker node tasks queue options in this pool.
-Parameters
---
-
-
tasksQueueOptions: TasksQueueOptions
-The worker node tasks queue options.
-Returns void
-set Worker Choice Strategy
--- set
Worker Choice Strategy(workerChoiceStrategy, workerChoiceStrategyOptions?): void
--
-
-
-
-
Sets the worker choice strategy in this pool.
-Parameters
---
-
-
--
-
-
workerChoiceStrategy: "ROUND_ROBIN" | "LEAST_USED" | "LEAST_BUSY" | "LEAST_ELU" | "FAIR_SHARE" | "WEIGHTED_ROUND_ROBIN" | "INTERLEAVED_WEIGHTED_ROUND_ROBIN"
-The worker choice strategy.
-
-Optional
workerChoiceStrategyOptions: WorkerChoiceStrategyOptionsThe worker choice strategy options.
-Returns void
-set Worker Choice Strategy Options
--- set
Worker Choice Strategy Options(workerChoiceStrategyOptions): void
--
-
-
-
-
Sets the worker choice strategy options in this pool.
-Parameters
---
-
-
workerChoiceStrategyOptions: WorkerChoiceStrategyOptions
-The worker choice strategy options.
-Returns void
- Hook
-Protected
setup-- setup
Hook(): void
--
-
- workerNodeKey: number
- task: Task<Data>
Setup hook to execute code before worker nodes are created in the abstract constructor. +
Parameters
The worker node key.
+The task to execute.
+Returns void
Protected
checkEmits dynamic worker creation events.
+Returns void
Protected
createCreates a new, completely set up dynamic worker node.
+Returns number
New, completely set up dynamic worker node key.
+Protected
createCreates a new, completely set up worker node.
+Returns number
New, completely set up worker node key.
+Protected
deregisterDeregisters a listener callback on the worker given its worker node key.
+Type Parameters
Parameters
The worker node key.
+The message listener callback.
+Parameters
Returns void
Returns void
destroy
Returns Promise<void>
Inherit Doc
Protected
destroyTerminates the worker node given its worker node key.
+Parameters
The worker node key.
+Returns Promise<void>
enable Tasks Queue
Parameters
Optional
tasksQueueOptions: TasksQueueOptionsReturns void
Inherit Doc
execute
Parameters
Optional
data: DataOptional
name: stringOptional
transferList: readonly TransferListItem[]Returns Promise<Response>
Inherit Doc
Protected
flagParameters
Returns void
Protected
flushParameters
Returns number
Protected
getGets the worker information given its worker node key.
+Parameters
The worker node key.
+Returns undefined | WorkerInfo
The worker information.
+has Task Function
Parameters
Returns boolean
Inherit Doc
Protected
internalWhether worker nodes are executing concurrently their tasks quota or not.
+Returns boolean
Worker nodes busyness boolean status.
+Protected
isReturns whether the worker is the main worker or not.
+Returns boolean
+true
if the worker is the main worker,false
otherwise.list Task Functions Properties
Returns TaskFunctionProperties[]
Inherit Doc
Protected
registerRegisters once a listener callback on the worker given its worker node key.
+Type Parameters
Parameters
The worker node key.
+The message listener callback.
+Parameters
Returns void
Returns void
Protected
registerRegisters a listener callback on the worker given its worker node key.
+Type Parameters
Parameters
The worker node key.
+The message listener callback.
+Parameters
Returns void
Returns void
remove Task Function
Parameters
Returns Promise<boolean>
Inherit Doc
Protected
sendSends the startup message to worker given its worker node key.
+Parameters
The worker node key.
+Returns void
Protected
sendSends a message to worker given its worker node key.
+Parameters
The worker node key.
+The message.
+Optional
transferList: readonly TransferListItem[]The optional array of transferable objects.
+Returns void
set Default Task Function
Parameters
Returns Promise<boolean>
Inherit Doc
set Tasks Queue Options
Parameters
Returns void
Inherit Doc
set Worker Choice Strategy
Parameters
Optional
workerChoiceStrategyOptions: WorkerChoiceStrategyOptionsReturns void
Inherit Doc
set Worker Choice Strategy Options
Parameters
Returns boolean
Inherit Doc
Protected
setupSetup hook to execute code before worker nodes are created in the abstract constructor. Can be overridden.
-Returns void
-start
--- start(): void
--
-
-
Starts the minimum number of workers in this pool.
-Returns void
- Listener
-Protected
worker-- worker
Listener(): ((message) => void)
--
-
-
This method is the listener registered for each worker message.
-Returns ((message) => void)
The listener function to execute when a message is received from a worker.
- ---
-
--- (message): void
--
-
-
-
-
This method is the listener registered for each worker message.
-Parameters
---
-
message: MessageValue<Response, unknown>
Returns void
The listener function to execute when a message is received from a worker.
- --
-Settings
Member Visibility
Theme
-
-On This Page
-- constructor
-- emitter
-- file
Path
-- max
-- number
Of Workers
-- opts
-- promise
Response Map
-- worker
Choice Strategy Context
-- worker
Nodes
-- busy
-- full
-- info
-- max
Size
-- min
Size
-- ready
-- type
-- utilization
-- worker
-- add
Task Function
-- after
Task Execution Hook
-- after
Worker Node Setup
-- before
Task Execution Hook
-- create
And Setup Dynamic Worker Node
-- create
And Setup Worker Node
-- create
Worker
-- deregister
Worker Message Listener
-- destroy
-- destroy
Worker Node
-- enable
Tasks Queue
-- execute
-- flush
Tasks Queue
-- get
Worker Info
-- has
Task Function
-- has
Worker Node Back Pressure
-- internal
Busy
-- is
Main
-- list
Task Function Names
-- register
Once Worker Message Listener
-- register
Worker Message Listener
-- remove
Task Function
-- send
Kill Message To Worker
-- send
Startup Message To Worker
-- send
To Worker
-- set
Default Task Function
-- set
Tasks Queue Options
-- set
Worker Choice Strategy
-- set
Worker Choice Strategy Options
-- setup
Hook
-- start
-- worker
Listener
Generated using TypeDoc
Returns void